Shaft hanger



July 10, 1923. 1,461,236

' Yl. F. WEBB Y n SHAFT HANGER Filed June l2, 1920 2 Sheets-Sheet l INVENTOR m17 20%# ATTORNEY l. F. WEBB SHAFT HANGER Julyl 1 0, 1923.

Filed June 12. 1920 2 sheets-sheet' 2 15.11211., r n xIIHHWHIIIIIILUIImnFUI INVENTOR TTORNEY Patented July 10, 1923.

UNITED STATES vmmaza PATENT oFFlcE.

IRVING l'. WEBB, OF ELIZABETH, NEW JERSEY, ASSIGNOB TO THE SINGER MANUFAC- TUBING COEPANY, OF ELIZABETH, NEW JERSJlY, A CORPORATION 0F NEWv JERSEY.

SHAFT HANGER.

Application led June 12, 1920. Serial No. 388,460.

To all 'whom z't may concern:

Be it known that I, IRVING F. WEBB, a citizen of the United States, residin at Elizabeth, in the county of Union and tate of New Jersey, have invented certain new and useful Improvements in Shaft Hangers, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to shaft-hangers and more especially to a hanger for sustaining ball-bearings for the power-shaft of a sewing machine ower-table.

Among the objects of the invention isto rovide a bearing support which will allow or adjustment of the bearing in all directions necessary in the proper aligning of the shaft and which after the adjustments are made may be readily and positively secured in adjusted position.

Another object of the invention is to provide a bearing support which is simple in construction, will not readil get out of order, requires very little mac ining and so is cheap and easy of manufacture and which will not require a great deal of space.

A still further object is to provide a housing for the ball-bearing which will entirely enclose the same, preventing the entrance of dust and dirt thereto and prevent the escape of oil therefrom and still is simple in construction.

These and other objects and advantages of the invention will appear as the description thereof proceeds.

In the preferred embodiment of the invention the ball-bearing, which is of the universal type, is enclosed within a capped housing which also surrounds the shaft. The housing has two upwardly extending spaced lugs or ears which may be disposed on the opposite sides of and spaced from the lower end of a housing support. The housing support and lu have aligned openings or bearings throug which extends a supporting rod and means are provided for securing the rod therein after adjustments longitudinally and axially of the rod have been made.

The housing-support has a vertically extending cylindrical body portion provided with an offset portion extending` at right angles thereto at its upper end. he frame of the power-table is provided with two vertically spaced horizontally extending lugs which have V-shaped recesses in their free ends .and the cylindrical body portion of the houslng-support is adapted to rest in these recesses with the lower end of an adjusting screw extending through the oEset portion restlng on the upper surface of the upper lug. This cylindrical body portion 1s clamped in the V-shaped recesses by means of a clamping ring.

Reference l1,s made to the accompanying drawmgs for a more detailed ydescription of the invention in which Fig. 1 is a sectional v1ew of a portion of a sewing machine power-table showing my hanger positioned thereon with the end of the shaft, the housin g and bearing being shown in section. Fig. 2 is an elevation of the complete hanger detached. Fig 3 is an elevation at right angles to Fig. 2. Fig. 4 is la plan view of the detached hanger. Fig. 5 is a detail plan of the means for securing the housing-su port to the power-table frame. Figs. y6 an 7 represent 1n side and front elevations a slight modification.

Reference numeral 1 indicates a portion of the end of a power-table frame upon which is mounted the top 2 and cover 3 which supports the machine. The frame 1 is provided with two vertically spaced horizontally extending integral lugs 4 and 4 provided in their free ends with alined V-shaped recesses 5.

The hanger proper comprises a housingsupport 6 preferably formed with a cylindrical body portion 7 which has integral therewith at its upper end, and extending at right angles to the axis of the body portion, an offset portion 8 through which is threaded an adjusting screw 9 extendin substantially parallel with the axis of the ody'portion. As clearly shown in Fig. 1 the body portion is placed within the recesses 5 and a clamping collar 10 which embraces this body portion extends'between the two lugs 4 and 4 and a screw-bolt 11 which is threaded into the collar 10 extends through an opening in the side of the frame 1. By Y e. The lower end of the housing-support 6 is provided with a split bearin 13 vextending at right angles to the axis o the body portion 7 and mounted in this bearing is a supporting rod 14. The ears of the split bearing are provided with clamping screws 15.

Surrounding the shaft 16 upon which is mounted Vthe pulley 17, for transmitting Wer to the machine, is the ball-bearing 18. lille bearing shown is of the S. K. universal type comprising an outer rlng 19 having raceway for t e balls and an inner rin 20 provided with a raceway for each set of alls, the whole being clamped `to the shaft by means of the split collar 21 and the locking nut 22.

The bearing is enclosed within the housing 23 whose inner wall 24 is of a diameter to fit the outer wall of the ring 19. The housing 23 is open at one side and this open side is closed by a cap 25 secured to the body of the housing by means of suitable screws 26. The openings 27, 28 in the housing body and cap are provided with annular grooves in which are placed ackings 29 to prevent entrance of dust and) dirt and loss of oil from the bearing. The ca 25 is provided with a removable plug` 30 y means of which oil ma be supplied to the bearing.

n the upper portion of the housing-body are rovided two integral upwardly extending ugs or ears 31, p aced at suicient distance apart that w en they embrace the lower split bearing of the housing sup ort 6, spaces 32 are provided, and as the ro 14 extends through these lugs it will be seen that the spaces 32 allow for adjustment of the housing longitudinally of thek bearing 13 when the clamping screws 15 are loosened. It will also be noted that as-the rod 14 may turn within the bearing 13 the housing 23 has an angular adjustment relative to the housing-support 6. After the adjustments are made the bolts 15 are tightened, clamping the rod 14 in the bearing 13, and as the ears 31 are provided with set-screws 33 the ends of which are recessed into the rod 14, it will be clear that the housing may be securely locked in adjusted position.

By 'loosening the bolt 11 the housing-support 6 may be adjusted or turned about its axis and may also be adjusted vertically by means of the screw 9. After these adjustments have been made, by tightening the bolt 11 the housing-support is securely clamped to the table-frame 1.

In the modification shown in Figs. 6 and 7 instead of providing the lower end of the housing-support 6 with a split bearing as shown in Figs. 1 to 4, it is provided with a solid bearing 34 having a set-screw 35 therein and the upwardly extending lugs or ears 36 on the housing are provided with split bearings 37 instead of the solid bearings as shown in the other form. The split bearmgs i 37 are provided with clamping screws 38. will be noted from this arrangement that although the same adjustments may be obtained it is unnecessary to offsetv the bearing and su porting rod 14 as shown in Figs. 1 and 3, ut the axis of this rod may be suported in alinement with the axis of the y portion 7 of the housing-support as shown in Fig. 6. This re uires less space lengthwise of the shaft 16, showing the housing 23 to be placed nearer the end surface of the frame 1.

It will be noted that the structure is a very simple one requiring very little machining and therefore may be manufactured cheaply in large quantities and there are no diilicult adjustments to be made. Furthermore the method of mounting the housing on the housing-support and of clamping the housin -support to the frame of the power-table al ows for all the adjustments required in pro erly aligning the shaft.

aving thus set forth the natiire of the invention, what l claim herein is 1. ln a device of the class described, a supportin means provided with a lug rigid therewith and having a recess, a support having a portion adapted to rest in sald recess, means for clam mg said support there- .eat

in, means indepen ent of the clamping means for adjusting the support in said supporting means, and a bearing secured to the support.

2. ln a device of the class described, a supporting means provided with spaced lugs rigid therewith and having aligned recesses,

a supporting rod adapted to rest in said recesses, means for adjusting the supporting rod endwise in said recesses, means for clampin the supporting rod against the walls o` said recesses in adjusted position, and a shaft bearing secured to the support.

3. In a device of the class described, a supporting means provided with vertically Vspaced lugs `rigid therewith and having ali ned recesses, a supporting rod provide wit an o'set portion, an adjusting screw in said offset portion, means for clamping the supportinglrod against the walls of the recesses wit against one of said lugs, and a shaft bearing secured to the support. f

4. In a device of the class described, a housing-support comprising a cylindrical body portion, an oiiset portion at one end, an adjusting screw in said oiset portion and the adjustingscrew abutting' the housing-support provided adjacent its opposite end with a transverse bearing, a rod extending therethrough, a support for the housing-support provided with vertically spaced lugs having aligned V-shaped recesses, means for clamping the body-portion in said recesses, a bearing-housing provided with spaced ears on opposite sides of the housingsupport through which the rod extends, and means for securing the rod in adjusted posi'- tion in the housing-support.

5. In a device of the class described, a 5 supporting means formed with an open-sided vertical guideway, a support received in said ideway, a. screw for eiecti vertical ad- ]ustment of said support in' said guideway,

means independent of said screw for clamping said .support to said ideway,'and a. 10 shaft-hanger carried by an adjustable horizontally on said support.

In testimony whereof, I have signed my name to this specification.

mviNG F. WEBB. 

